Chemistry
How can you tell that Iron and Sulphur have formed a mixture before they are heated?
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You can tell that Iron and Sulphur have formed a mixture before they are heated by observing the physical properties of the sample. For example, if the sample is a solid, the particles of Iron and Sulphur will be visible and mixed, while if the sample is a liquid, they will be evenly dispersed in the solution. Other signs of a mixture include changes in texture, changes in color, and evidence of suspended particles.